Microsoft has been blocking the May 2019 Update for the Surface Book 2 due to ongoing issues with the dedicated GPU disappearing from the Device Manager.
Now Microsoft claims to have finally fixed the issue, and has started pushing out a firmware update to the Surface Book 2. The update also fixes the old PC Throttling issue.
The full changelog can be seen below:
|Windows Update History Name||Device Manager Name|
|Surface – System – 188.8.131.52||Surface Base 2 Firmware Update – Firmware|
|Surface – Firmware – 182.1004.139.0||Surface System Aggregator – Firmware|
|Surface – Firmware – 389.2837.768.0||Surface UEFI – Firmware|
You can manually download the Surface Book 2 drivers and firmware package here. Once the firmware is installed the blocked May 2019 should also become available.